Usdin, Gene     & Hofling, Charles K <br/><br/>
Aging : the process and the people 

 - Brunner/ Mazel Publishers, New york  1978 
 - xiv,248 
<br/><br/><label>ISBN: </label>0-87630-178-2 
<br/><br/><label>Dewey Class. No.: </label>362.6 Usd/Hof